Comparison between Arabica Coffee Bean and Luodou A brief introduction to the Source of aroma of Coffee Bean

Professional coffee knowledge exchange more coffee bean information please follow the coffee workshop (Wechat official account cafe_style)

Qianjie-the difference between Arabica coffee beans and Luodou, and a brief introduction to the aroma sources of coffee beans

1. The planting environment is different.

Arabica coffee trees are suitable for planting in mountain environments with elevations of 600-2200 meters, temperatures of 15 °- 24 °C and annual rainfall of 1200-2200 mm. And Robusta coffee trees, do not require high altitude, can be planted between 0-800m, but also suitable for higher temperatures (18 °- 36 °C), and 2200-3000 mm / year rainfall. In terms of yield, Arabica produces less coffee per hectare than Robusta, which makes Arabica much more expensive to grow.

two。 Coffee beans have different shapes.

Arabica coffee beans are slightly larger than Luodou, and most of them are in the shape of long strips (such as tin card). The centerline of Arabica coffee beans is curved, while Luodou is relatively oval and straight (which makes it more intuitive to tell the two). There are also structural differences between coffee beans, which may explain why the two coffee beans are roasted differently under the same conditions.

3. Caffeine and chlorogenic acid have different contents.

Both caffeine and chlorogenic acid (CGA) have a bitter taste and are thought to be inhibitors of insects and animals. Robusta, which contains about twice as much caffeine and chlorogenic acid as Arabica coffee, grows more "robust" in the wild and is more bitter and rougher in terms of coffee flavor. Vietnamese coffee is a typical coffee made by Luodou, which must be filtered with condensed milk before it can be drunk, otherwise it tastes too bitter and most people can't stand drinking it alone. As mentioned in the title, some friends say that drinking coffee is easy to be "flustered". It may be caused by drinking coffee made with a large amount of Luodou, such as Italian coffee from some chain cafes or instant coffee. Is the "main station" of Luodou)

4. The content of fat and sugar is different.

Arabica contains almost 60% more lipids and almost twice the concentration of sugar than Robusta. These fat sugars play an important role in the roasting process of coffee, and the charming aroma of coffee is transformed by these, so the sweetness of drinking coffee is different.

5. Different pollination methods

Arabica is a self-pollinating plant, which means that Arabica has fewer mutations and mutations throughout its life cycle than Robusta. (for example, Iron pickup, Bourbon, Kaddura, etc., are all mutated by Arabica)

6. The number of chromosomes is different

Arabica has 44 pairs of chromosomes, while Robusta has only 22 pairs.

Coffee beans themselves contain a variety of rich substances: organic acids, proteins, carbohydrates, lipids, there are many chemical changes in the baking process, heated coffee will release a unique aroma. Among them, the two most important reactions are Mena reaction (Maillard reaction) and caramelization reaction (Caramelization). When the coffee is ground into powder, the aroma of fruit, the fragrance of flowers and the unique aroma of coffee will permeate the whole air, but in fact, unroasted raw coffee beans smell strong with a strong smell of grass. baking is the key to the aroma of coffee.

Knowledge expansion: the Mena response can be said to be famous, covering a lot of food changes. Its principle is: when sugars encounter amino acids or proteins, due to high temperature, the two substances condensed to form melanin-like polymers, so that the food color into brown, and produce thiamine substances and phospholipids, etc., emitting aroma.

In short: Qianjie is a coffee research hall, happy to share the knowledge about coffee with you, we share unreservedly just to make more friends fall in love with coffee, and there will be three low-discount coffee activities every month. The reason is that Qianjie wants to make more friends drink the best coffee at the lowest price, which has been Qianjie's tenet for 6 years!

END